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Net Gain From Measurement Of Financial Instruments At Fair Value (Tables)
 12 Months Ended
Dec. 31, 2020
Statement [LineItems]  
Summary of Net gain from Measurement of Financial Instruments at Fair Value through Profit or Loss
Description
  12/31/2020   12/31/2019   12/31/2018 
Gain from government securities
   10,076,885    2,570,385    1,145,974 
Gain from private securities
   847,819    1,133,530    682,391 
Gain from derivative financial instruments
      
Forward transactions
   75,950    2,051,535    522,385 
Put options
   417,029    769,490   
Gain from other financial assets
   2,658    246,356    524,281 
Gain from equity instruments at fair value through profit or loss
   2,523,585    4,530,493    27,976 
Gain / (Loss) from sales or derecognition of financial assets at fair value
   34,768    (502,031)    (261,178) 
  
 
 
   
 
 
   
 
 
 
  
 
13,978,694
 
  
 
10,799,758
 
  
 
2,641,829